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-   -   Fox 2.5 Rear RR 0-1.5in lift work with a 2in Rear Spring? (https://www.toyota-4runner.org/5th-gen-t4rs/299001-fox-2-5-rear-rr-0-1-5in-lift-work-2in-rear-spring.html)

Token_Indian 07-19-2021 11:45 PM

Fox 2.5 Rear RR 0-1.5in lift work with a 2in Rear Spring?
 
Hello Everyone,

So I got a good deal on Fox 2.5's all around with RR in the rear only. This is for my SR5 14'Runner and wanted to get the opinions from people who have the 2.5 Fox's in the rear and what spring did they pair it with & why?

In a haste, because of the deal I did not dive too much into the length of the shock body, but after looking into the 2.5 rears, they only came in 0-1.5in of lift. I understand that the stock runner has a 0-2 rake with the front and the rear. I was planning on lifting the front with to 2.5in w/ Camburg UCAs. In turn I wanted to add the Icon 2in lift in the rear, but from what I am reading the 2.5 Fox's will constantly be over extended and thus causing strain on the shock body; which could lead to busting the seals, I think. Its my understanding that it will limit down travel as well.

I have read online that the Tundra rear can work for the 4runner (need to adjust the eyelet) but I already have the 2.5's in hand and just want to throw them on the truck already. In addition to the 2in lift, I already have sliders and a roof rack weighing just over 200lbs. The rear is mostly empty apart from some random supplies and a compressor, however when loaded with gem hunting tools the rear weight is an additional 70-90lbs, more if camping.

So am I stressing the 2.5's if I add the 2in lift, or are there individuals on the forum who are making it work with the limited lift of the 2.5 rears?

As always, thanks and happy wheeling.

MAST4R 07-20-2021 12:23 AM

Quote:

Originally Posted by Token_Indian (Post 3657254)
Hello Everyone,

So I got a good deal on Fox 2.5's all around with RR in the rear only. This is for my SR5 14'Runner and wanted to get the opinions from people who have the 2.5 Fox's in the rear and what spring did they pair it with & why?

In a haste, because of the deal I did not dive too much into the length of the shock body, but after looking into the 2.5 rears, they only came in 0-1.5in of lift. I understand that the stock runner has a 0-2 rake with the front and the rear. I was planning on lifting the front with to 2.5in w/ Camburg UCAs. In turn I wanted to add the Icon 2in lift in the rear, but from what I am reading the 2.5 Fox's will constantly be over extended and thus causing strain on the shock body; which could lead to busting the seals, I think. Its my understanding that it will limit down travel as well.

I have read online that the Tundra rear can work for the 4runner (need to adjust the eyelet) but I already have the 2.5's in hand and just want to throw them on the truck already. In addition to the 2in lift, I already have sliders and a roof rack weighing just over 200lbs. The rear is mostly empty apart from some random supplies and a compressor, however when loaded with gem hunting tools the rear weight is an additional 70-90lbs, more if camping.

So am I stressing the 2.5's if I add the 2in lift, or are there individuals on the forum who are making it work with the limited lift of the 2.5 rears?

As always, thanks and happy wheeling.

Congrats on the deal!

I have been paying inordinate amount of attention to rear shocks over the last 8-9 months LOL.

If I were in your shoes, I would go 2/1.5 and call it a day; stock UCAs as well. That said, if your trail weight is enough to make your 2" rear spring a 1.5" rear spring on the trail and a 1" rear spring when loaded for camping, then your 2" rear lift will only be the case in the garage and on commutes, which does not matter.

On the whole, placement absolutely matters. The Icon 2.0 IFP that I had was a 1-3" shock per Icon. However, used on 1" spring, it had very little up travel and on top of that the long body rubbed on the emergency brake cable. Its sweet spot would be 2". By contrast, the Eibach I used had a sweet spot at 1". My current 8100 are perfect at 1" but 1.5" would be very good as well.

Realistically, I don't get a 1" from the Eibach rear springs unless I am totally empty. Even with just my tools in, I get 0.75" of lift and my normal trail weight lift is 0.5" from the 1" spring. I could move on to 1.5" but I am too lazy to do so :)

Token_Indian 07-20-2021 04:36 PM

Quote:

Originally Posted by MAST4R (Post 3657262)
Congrats on the deal!

I have been paying inordinate amount of attention to rear shocks over the last 8-9 months LOL.

If I were in your shoes, I would go 2/1.5 and call it a day; stock UCAs as well. That said, if your trail weight is enough to make your 2" rear spring a 1.5" rear spring on the trail and a 1" rear spring when loaded for camping, then your 2" rear lift will only be the case in the garage and on commutes, which does not matter.

On the whole, placement absolutely matters. The Icon 2.0 IFP that I had was a 1-3" shock per Icon. However, used on 1" spring, it had very little up travel and on top of that the long body rubbed on the emergency brake cable. Its sweet spot would be 2". By contrast, the Eibach I used had a sweet spot at 1". My current 8100 are perfect at 1" but 1.5" would be very good as well.

Realistically, I don't get a 1" from the Eibach rear springs unless I am totally empty. Even with just my tools in, I get 0.75" of lift and my normal trail weight lift is 0.5" from the 1" spring. I could move on to 1.5" but I am too lazy to do so :)

Thanks for the information, Im thinking the same. The 2in might make more sense for me once I have additional weight in the back, but from what I have read the T13 might be better suited for my rig. Thanks again for the info.

MAST4R 07-20-2021 04:47 PM

Quote:

Originally Posted by Token_Indian (Post 3657399)
Thanks for the information, Im thinking the same. The 2in might make more sense for me once I have additional weight in the back, but from what I have read the T13 might be better suited for my rig. Thanks again for the info.

Yeah, I should have gotten T13 instead of the 1" Eibach.

It should work really well with the capable rear shocks.


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